(a) Subject to such terms and conditions as the Administrator may prescribe, a sponsor or a planning agency may submit, with respect to any provision of this part implementing a statutory or administrative requirement imposed on the sponsor or planning agency under the AADA, a certification that the sponsor or planning agency has complied or will comply with the provision, instead of making the showing required.

(b) The Administrator exercises discretion in determining whether to accept a certification.

(c) Acceptance by the Administrator of a certification from a sponsor or planning agency may be rescinded by the Administrator at any time if, in the Administrator's opinion, it is necessary to do so.

(d) If the Administrator determines that it is necessary, the sponsor or planning agency, on request, shall show compliance with any requirement for which a certification was accepted.